Courtyard by Marriott Nashville Airport. The newly renovated Courtyard Nashville Airport Hotel is located less than 2 miles from Nashville International Airport (BNA), offering complimentary airport shuttle service and convenient access to the city's most popular attractions like the Grand Ole Opry and area businesses.
Physical dependence on drugs is marked by growing tolerance of a drug's effects, so that increased amounts of the drug are needed to obtain the desired effect, and by the onset of withdrawal symptoms over periods of prolonged abstinence.hysical dependence on drugs is marked by growing tolerance of a drug's effects, so that increased amounts of the drug are needed to obtain the desired effect, and by the onset of withdrawal symptoms over periods of prolonged abstinence.
Definition. Polysubstance dependence refers to a type of substance dependence disorder in which an individual uses at least three different classes of substances indiscriminately and does not have a favorite drug that qualifies for dependence on its own.olysubstance dependence is listed as a substance disorder in the Diagnostic and Statistical Manual of Mental Disorders published in 2000 (also known as the DSM-IV-TR).